Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

All-fiber laser pump reflector based on a femtosecond-written inner cladding Bragg grating

Not Accessible

Your library or personal account may give you access

Abstract

We report on the writing of chirped cladding Bragg gratings using 400 nm femtosecond pulses and the phase-mask inscription technique in the pure silica inner cladding of the gain fiber. The usefulness of such a fiber component is demonstrated as a pump reflector in a cladding-pumped all-fiber laser. A reflectivity of 53% for the residual pump power guided in the highly multimode 125 μm fiber’s cladding is achieved, allowing for significant pump recycling in the fiber laser cavity which therefore optimizes the overall laser performances. As proof of concept, adding this pump reflector at the output of a 25 W erbium-doped fiber laser operating near 1.6 μm increased its slope efficiency according to the launched pump power from 17% to 23%, with the beneficial effect of reducing by 25% the optimal gain fiber length. This new, to the best of our knowledge, fiber laser component would have a great impact on the efficiency and cost of high-power cladding-pumped fiber laser systems.

© 2019 Optical Society of America

Full Article  |  PDF Article
More Like This
Femtosecond written fiber Bragg gratings in ytterbium-doped fibers for fiber lasers in the kilowatt regime

Ria G. Krämer, Christian Matzdorf, Andreas Liem, Victor Bock, Wilko Middents, Thorsten A. Goebel, Maximilian Heck, Daniel Richter, Thomas Schreiber, Andreas Tünnermann, and Stefan Nolte
Opt. Lett. 44(4) 723-726 (2019)

Erbium fiber laser based on intracore femtosecond-written fiber Bragg grating

Elodie Wikszak, Jens Thomas, Jonas Burghoff, Bülend Ortaç, Jens Limpert, Stefan Nolte, Ulrike Fuchs, and Andreas Tünnermann
Opt. Lett. 31(16) 2390-2392 (2006)

Optimized laser-written ZBLAN fiber Bragg gratings with high reflectivity and low loss

Gayathri Bharathan, Toney Teddy Fernandez, Martin Ams, Robert I. Woodward, Darren D. Hudson, and Alex Fuerbach
Opt. Lett. 44(2) 423-426 (2019)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (6)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Metrics

Select as filters


Select Topics Cancel
© Copyright 2022 | Optica Publishing Group. All Rights Reserved